HLS Channel
The HLS channel module converts the image into a hue, saturation, and lightness components instead of the RGB representation. The Hue is the color of the image, the Saturation is the pureness of the hue color, and the lightness is the strength of the hue. By selecting the appropriate radio button you can see the appropriate channel without the other two components similar to the RGB and YUV channel module.
Interface
Instructions
1. Select the appropriate channel
Multi Channel Hue - image hue approximated as maximum RGB channels
Single Channel Hue - image hue represented as grayscale
Saturation - image saturation represented as grayscale amount
Lightness - essentially the grayscale representation of the image
HLS as RGB - converts from RGB to HLS by placing the HLS components placed into each of the RGB channels
RGB as HLS - converts from HLS to RGB by assuming each of the RGB channels contains the HLS channels
Example
| Source Image | Image Hue |
 |  |
| Image Saturation | Image Lightness |
 |  |
| Color Replace | |
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 Download the robofile used to generate the color replace example. | |
See Also
For more information
Paul Bourke - HSL color space
Wikipedia - HSL color space
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